[issue29016] negative numbers raised to power zero should be 1, not -1

Robin W Gambill report at bugs.python.org
Mon Dec 19 12:59:59 EST 2016


Robin W Gambill added the comment:

I see my error now. I'm sorry for my ignorance. I will google how to delete the bugs item, but I guess is permanent, se la vie.
Thank you.
Robin
--------------------------------------------
On Mon, 12/19/16, Tim Peters <report at bugs.python.org> wrote:

 Subject: [issue29016] negative numbers raised to power zero should be 1, not -1
 To: r_w_gambill at yahoo.com
 Date: Monday, December 19, 2016, 12:51 PM

 New submission from Tim Peters:

 They already are.

 >>> (-2)**0
 1

 You're probably doing this instead:

 >>> -2**0
 -1

 Exponentiation has higher precedence than unary minus, so
 that last example groups as -(2**0), and -1 is correct.

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 nosy: +tim.peters
 resolution:  -> not a bug
 stage:  -> resolved
 status: open -> closed

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 <http://bugs.python.org/issue29016>
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